Present Perf, Present Perf. Cont. Past Perf.

She ____ reading that book.

• has just finished

• has just been finishing

• had just finished

Before I moved to this city, I _____ such a diverse culture.

• has never experienced

• has never been experiencing

• had never experienced

By the time the concert started, we _____ our seats.

• have already found

• have alrady been finding

• had already found

I _____ Spanish for six months.

• have studied

• have been studying

• had studied

They ____ that movie.

• have already seen

• have already been seeing

• had already seen

She _____ on the project all morning.

• has worked

• has been working

• had already worked

They _____ their lunch before the meeting began.

• have finished

• have been finishing

• had finished

We _____ for the bus for half an hour.

• have waited

• have been waiting

• had waited

I realized I _____ my keys at home when I arrived at the office.

• has left

• has been leaving

• had left